Gas-burner baffle.



J. SCHIRRA. GAS BURNER BAFFLE. APPLICATION FILED MAY 26, 1908.

Patented Feb. 23, 1909.

unrrn s ra arnn'r crane JULIUS SCHIRRA, OF PITTSBURG, PENNSYLVANIA,ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, OF SEVENTEEN-SIXTIETHS TOPETER WEINKAUF AND ONE-THIRD TO ELMER A. LORTZ, BOTH OF PITTSBURG,PENNSYLVANIA, AND ONE-TENTH TO HENRY C. SCHWARTZ, OF MILLVALE,PENNSYLVANIA.

GAS-BURNER RAFFLE.

Specification of Letters Patent.

Patented Feb. 23, 1909.

I Application filed May 26, 1908. Serial No. 435,095.

To all whom it may concern:

Be it known that I, JULIUs SGHIRRA, a citizen of the United States,residing at Pittsburg, in the county of Allegheny and State ofPennsylvania, have invented certain new and useful Improvements in Gas-Burner Battles, of which the following is a s ecification, referencebeing had therein to t e accompanying drawing.

My invention refers to improvements in burners for gas stoves, andconsists of a flame-deflecting and combustion-assisting device, adaptedto be laid over the ordinary burner of a gas stove, for the purpose ofbreaking up the flame, facilitating the supply and admixture of the airwith the gas, providing means forholding and radiating the heat, and fordeflecting and delivering the roducts of combustion against the articleto e heated.

The invention is more fully hereinafter described, reference being hadtherein to the accompanying drawings, in which Figure 1 is a view inside elevation of one form of the device, showing'its position on theburner proper of an ordinary cook stove. Fig. 2 is a plan view of theconstruction of Fig. 1. Figs. 3 and I are similar views showing modifiedconstructions. Fig. 5 is a transverse vertical section indicated by theline V. V. of Fig. 8, illustrating a further modified form. Fig. 6 is aplan view of Fig. 5.

The invention consists generally of a preferably circular framework ofmetal or of a suitable non-combustible material, as asbestos, soarranged that it will provide a stiffening structure adapted to be aburner of any suitable construction, am of sufficient depth to admit ofthe admixture of the air with the gas as it passes up through the deviceand so arranged that the flames will be broken up or baffled, theinterior portion of the baffle being covered with a suitablenon-combustible material, preferabiy asbestos.

n the construction shown in Figs. 1 and 2, the main frame of the deviceconsists of a band of metal '2 formed into series of lobeshapedconvolutions with intervening spaces 3 arranged around a central cavity4. As

thus constructed it will be seen that a diskaid upon like annular seriesof alternate spaces and radially arranged frame arms is provided, aswell as the central aperture, and that thereby ample provision is madefor the upward passage of the gas and air through said openings as thegas emerges from the jet openings 5 of any suitable burner '6, uponwhich the device is set. The frame 2 is covered at all parts as shownwith asbestos fiber 7 of a light feathery character, which forms apartialobstruction across the path of the gases and which Will partiallyinterfere with and disturb their upward travel, permitting ampleadmixture with the air and resulting in erfect combustion and temporaryabsorption of a large amount of heat by the asbestos and resultingradiation therefrom.

In the construction shown in Figs. 3 and 4 I form the main frame ofstrips of asbestos board, arranged to provide an outer circular branchband a, an inner circular ring I) and intervening connecting framemembers 0, (1, arranged in any suitable manner to provide a good body orframe and connected together by cement, wiring, or otherwise. Theseelements, as shown, are set edgewise and provide ample clearance spacefor passage of the gases, and are likewise covered with asbestos fiber 7in'the same manner as above described.

In the form of the device shown in Figs. 5 and 6, I provide a circularframe of asbestos board or fiber 8 having an upper inwardly sl o' ingcoping 9 surrounding a central outlet aperture 10, and within such shellI apply to the interior walls and laterally arranged ribs or arms 11, asimilar covering of asbestos fiber 12, the construction in such casealso consisting cntirelyof asbestos in dill'erent forms. The device isadapted to be laid upon the burner 6 and will operate to produceadmixture with the air anc baffling of the flame, practically all of theproducts of combustion passing upwardly and outwardly through thecentral aperture 10 and bein delivered against the bottom of the articleto be heated, the flame radiating in the form of an inverted cone, asindicated in the drawings. The same advantages accrue from suchconstruction, and if desired the coping 9 may be provided with aplurality of slits or openings 13 as indicated in Fig. 6, through whichportions of the flame will ass.

It will be understood that the device may be set upon the burner 6underneath the o ening of a stove, as indicated in Fig. 1, t e vessel tobe heated being sup orted on the top of the stove in the usua manner,above the burner, or that the vessel may be set directly on the top ofmy improved device. In the latter way of using 1t, the bottom of thevessel is thus supported a considerable distance above the jet openingsof the burner 6 while ample intervening space is provided to insurecomplete combustion and radiation of the gases. When thus used, theobjections of setting the vessel immediately upon the ordinary burnerand against the jet openings, (as is commonly done with such. gasburners) are entirely overcome and the full efiiciency of the fuel isdevelo ed.

It wil be understood that the invention may be variously modified inconstruction or arrangement as to the framework, the form or shape ofthe frame, and the resulting distribution of the attached asbestos, theoperation in all cases being substantially the same as I have described.

I have found in use that the device results in an appreciably higherdegree of heat with a less amount of gas than is required when theburner 6 alone is used, resulting in great economy in fuel, and thedevice itself will be found to have the advantages claimed, while beingextremely simple and cheap in construction and of an enduringindestructible nature.

erase? arms and intervening gas circulation apertures, said arms beingso arranged as to provide a central transverse aperture, said frameworkhaving a covering of asbestos, substantially as set forth.

3. A flame bafiiing device forgas burners of a disk-like supportingframe consistin compose of vertically disposed radially arrangedmetallic arms so incorporated with each other as to provide asubstantially flat framework with numerous transverse apertures, thearms of said framework having coverings of asbestos fiber, substantiallyas set forth.

4. A flame baffling device for gas burners consisting of a circularframework ofasbestos having a central apertured coping, radiallyarranged arms incorporated therewith, and a covering of asbestos fiber,substantially as set forth.

In testimony whereofl affix my signature in presence of two witnesses.

JULIUS SCHIRRA.

Witnesses:

C. M. CLARKE, CHAS. S. LEPLEY.

